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G. A. KOHOUT. FUHNACE GRATE. APPL |CAT|0N FILED JULY 2. 1911.

Patented July 15, 1919.

H i@ 6 l unir-nn srafrns rares cierren.

GEORGE A. KOHO'UT, 0F CHICAGO, ILLINOIS, ASSIGNOR T0 SHEAR-KLEAN GRATE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION F ILLINOIS.

FUnNAoE-ena'rn.

Original application led October 21, 1914, Serial No. 867,810. Divided and this specification of Letters Patent.

Patented July 15, 1919.

application led July 2,

1917. Serial No. 178,066.

To 'all whom t may concern:

.Be it known that I, GEORGE A. KoHoUT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Furnace-Gratos, of which the following is a full, clear, concise, and exact description, reference being had to ",the accompanying drawings, forming a part of this specification. l

` My invention relates to furnace grates g' and has for its object the provision of animproved grate mounting which makes it possible to provide proper and ample bearings for tiltable grate bars, these bearings being of such construction that they cooperate with the grate lbars when shaking the fire,

i' and are so constructed that they are readily v removable so that the parts which are most likely to become worn and unserviceable can bc readily replaced.

In general, my invention contemplates having suitable side frames about the fire box, which side frames have provision to 2i receive removable bearing elements interlocking with the side frames. The structure thus outlined also makes it very convenient to replace grate bars should such be found necessary.

This application is a division of my prior application Serial No. 867 ,810, filed October 2i, i914. I will explain my invention more in detail by referring to the accompanying drawing illustrating the same, in which:

Figure 1 is a top view of a portion of a ,grate showingmy improved trunnion and Ibearing. construction Fig. 2 is an end view thereof; -i Fig. 3 is a perspective view of the bear- F ig. Liis a sectional vi'ew on line /1-4 of Fig. 2; i

Fig. 5 is a sectional of Fig. 1 showing the grate bars, and

Fig. 6 is a sectional view on line 6-6 of Fic. 2. A

- lily improved structure as set forth inv cludes a plurality of grate bars 10 each being provided at their extremities with trunnions or shafts 11. The furnace proper is provided with side frames l2 which are adapted to receive bearing elements 13, these View along line 5 5 means for tilting the bearing elements accommodating the shaft 11. AV complete bearing is sho-wn in perspective in Fig. 3. The bearings 13 and side frames 12 are arranged so that the bearings may be slid'properly into their position and be readily removable and' replaceable. The particular means herein illustrated to accomplish this result consist of the flanges 1i, l5 'provided on. these Ibearing elements, which flanges coperate with the sido frame webs 16. These webs at their opposite extremities fit into the grooves between `the flanges 14 and 15, -thus to hold the bearing elements rigidly in place. The bearing ele-v ments then seat upon the shelf portion 17 provided in the side frame l2. This shows that the bearings can be readily removed by merely being lifted out of their position and new ones introduced. Not only can the bearings be thus very readily replaced and removed, but new grate bars can be with equal facility inserted and old ones removed.

In Fig. 4: IV show a sectional view of the bearing'element illustrating the flaring sur face into which 'the shaft 11 projects. In this manner binding between the parts 1l and 13 is obv-iatcd. iis there is a space between the grato 1G and fthe bearing clement 13 as is more clearly evident from Fig. 4, these grate bars may be given a sidewisc. motion as illustrated in my prior Patent No. 1,196,246 issued August 29, 1916. The bearing elements 13 are provided with fingers 19 projecting inwardly, which il'igers coperate with the lingers 20 forming part of the grate bars 10. The fingers 19 are provided with grooves 21 to assist in preventing formation of clinkers.

In Fig. 5 I show the grate bars 10 as provided with downwardly extending iingers 21a which in association with the rod 22 operated from without the furnace permit of tilting the grate ybars in the course of their use. It will be seen that the lingers 19 do not extend inwardly as far as the bearing element 13. There is thus an ample provision of projecting points to permit of properly dislodging those parts ofthe fuel which should be dislodged when the gra-tes are tilted.

From what has been thus described the nature of my invention will be readily clear to those skilled in the art. Having however thus described one form which my invention may take, what l claim as new and desire to secure by Letters Patent is:

l. A furnace structure having side frames and tiltable grate bars, each of said grato bars having yprojecting shafts at its sides, bearing elements for said `hafts, and means whereby said bearing elements may be removably mounted in said side frames, said bearing elements having inwardly projecting fingers for cooperating with said gate bars.

2. A. furnace structure having side fra-rines and tiltable grate lbars, each of said grate bars having vprojecting shafts at its sides, bearing elements for said shafts, and means whereby said bearing elements may be removabiy mounted in said side frames, said means including dove-nailing elements, said bearing elements having inwardly projecting fingers for cooperating 'with said grate bars.

3. A furnace structure having side frames and tilbable grate bars, each of said grate bars having `projecting shafts at its sides, bearing ele-ments for said shafts, and means whereby said bearing elements may be reinovabiy mounted in said side iframes, said 'bearing elements having inwardly projecting fingers for cooperating with said gratc bars, said fingers having grooves in their upper faces.

4. A furnace structure having side frames and tiitable grate bars, each or' said grate bars having lprcjecting shafts' at ics sides, bearing elements or said shafts, and means whereby said bearing elements may in; ron movably mounted in said side frames, said ties of said bearing elements, said bearing elements having ini c diy projecting grate fingers for cooperating with the said grate bars and said fingers having grooves in their upper faces.

6. Ei furnace structure having side frames and tiltable grate bars, cach of said bars having projecting shafts at its sides, bearing elements for said shafts, and means whereby said bearing elements may be removably mounted in said side fran es, said means including recesses aiong the opposite extremities of said bearing elemenhs, said bearing' elements having `inwardly projecting grate ingers -for cooperating with Jche said grate bars and said mfingers having grooves in their upper faces, and said bearing elements having Haring openings therethrough lo accomi modate said shafts.

lin Witness Wl'iereoi, i hcreumno subscribe my name *this 20th day of June, d. D., 191i'.

GEQRGE A. KUHU "n i-l/itness 2v linzen d. Jonas. 

